CN105483576A - Surface black and white spot control method in production of aluminum lithium alloy profile - Google Patents
Surface black and white spot control method in production of aluminum lithium alloy profile Download PDFInfo
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- CN105483576A CN105483576A CN201510957743.2A CN201510957743A CN105483576A CN 105483576 A CN105483576 A CN 105483576A CN 201510957743 A CN201510957743 A CN 201510957743A CN 105483576 A CN105483576 A CN 105483576A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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Abstract
The invention discloses a surface black and white spot control method in production of an aluminum lithium alloy profile; and the quenching insulation time is shortened during quenching, and is correspondingly shortened from traditional 35-60 minutes to 20-50 minutes. In actual production, the small-batch charge production finds that the surface black and white spot phenomenon of a 1420 CZ aluminum lithium alloy profile is mainly generated in the quenching heating insulation process; multiple samples are taken for relative detection and contrastive analysis, and all results show that black and white spots are positioned on the surface of an aluminum lithium alloy lithium removing layer; a black spot area has no structure difference, and is not deep into a metal matrix; the forming density of the black and white spots is mainly related to the quenching insulation time; through adjustment of a quenching system, the black and white spots on the surface of the profile are substantially controlled, and can be obviously relieved, namely, the quenching insulation time is shortened during quenching, and is 20-50 minutes; and the black and white spots can be effectively reduced.
Description
Technical field
The present invention relates to Al-Li alloy section bar production method technical field, a kind of melanoleukoderma point control method in surface when particularly Al-Li alloy section bar is produced.
Background technology
Please refer to Fig. 1, Fig. 1 is the structure schematic diagram of black and white spot in prior art.1420CZ Al-Li alloy is as high strength in one, and the functional materials of lightweight, its added value is quite high.There is black and white spot phenomenon in this Al-Li alloy Surface of profile in actual production process always, and some is point-like, and some is random bulk.User in use needs to carry out anodic oxidation to goods, and to strengthen solidity to corrosion and other performance of this alloy, and the black and white spot of this section bar has influence on carrying out of subsequent process.
Therefore, when how to provide a kind of Al-Li alloy section bar to produce, surface melanoleukoderma point control method, to reduce black and white spot, is the current technical issues that need to address of those skilled in the art.
Summary of the invention
The object of this invention is to provide a kind of melanoleukoderma point control method in surface when Al-Li alloy section bar is produced, to reduce black and white spot.
For solving the problems of the technologies described above, the invention provides following scheme:
A kind of melanoleukoderma point control method in surface when Al-Li alloy section bar is produced, shorten Quenching Soaking Time when quenching, its Quenching Soaking Time is 20 minutes to 50 minutes.
Preferably, above-mentioned Quenching Soaking Time is 30 minutes.
Preferably, above-mentioned Quenching Soaking Time is 20 minutes.
Preferably, the thickness of Al-Li alloy section bar is 1.5mm-6mm.
Preferably, Al-Li alloy section bar is 1420CZ Al-Li alloy.
When Al-Li alloy section bar that the invention described above provides is produced, surface melanoleukoderma point control method, shortens Quenching Soaking Time when quenching, and its Quenching Soaking Time correspondingly shortened to 20 minutes to 50 minutes by original 35 minutes to 60 minutes.In actual production, feed intake to produce through short run and find that 1420CZ Al-Li alloy Surface of profile black and white spot phenomenon mainly produces in Quench heating insulating process, correlation detection and comparative analysis is carried out through repeatedly sampling, result all shows that black and white spot is in Al-Li alloy and takes off lithium layer top layer, blackspot region has no histological difference, metallic matrix is not goed deep into yet, power spectrum micro-zone analysis blackspot position is containing O, C, the elements such as Mg, it is the surface chromatic aberration phenomenon formed due to the de-lithium in section bar surface in air furnace quench hot process and magnesium elements oxidation that analysis conclusion is regarded as, high magnesium, a kind of characteristic that 1420 alloys of high lithium content are exclusive.The intensity of black and white spot formation is mainly relevant with Quenching Soaking Time, by the adjustment to quenching system, Surface of profile black and white spot obtains effective control substantially, black and white spot also can obviously alleviate, namely Quenching Soaking Time is shortened when quenching, its Quenching Soaking Time is 20 minutes to 50 minutes, can effectively reduce black and white spot.
Accompanying drawing explanation
Fig. 1 is the structure schematic diagram of black and white spot in prior art;
Fig. 2 is the structure schematic diagram of normal black and white spot after surface melanoleukoderma point control method when adopting Al-Li alloy section bar to produce.
Embodiment
In order to make those skilled in the art understand the present invention program better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 2, Fig. 2 is the structure schematic diagram of normal black and white spot after surface melanoleukoderma point control method when adopting Al-Li alloy section bar to produce.
Melanoleukoderma point control method in surface when the Al-Li alloy section bar that the embodiment of the present invention provides is produced, shorten Quenching Soaking Time when quenching, its Quenching Soaking Time is 20 minutes to 50 minutes.In actual production, feed intake to produce through short run and find that 1420CZ Al-Li alloy Surface of profile black and white spot phenomenon mainly produces in Quench heating insulating process, correlation detection and comparative analysis is carried out through repeatedly sampling, result all shows that black and white spot is in Al-Li alloy and takes off lithium layer top layer, blackspot region has no histological difference, metallic matrix is not goed deep into yet, power spectrum micro-zone analysis blackspot position is containing O, C, the elements such as Mg, it is the surface chromatic aberration phenomenon formed due to the de-lithium in section bar surface in air furnace quench hot process and magnesium elements oxidation that analysis conclusion is regarded as, high magnesium, a kind of characteristic that 1420 alloys of high lithium content are exclusive.The intensity of black and white spot formation is mainly relevant with Quenching Soaking Time, by the adjustment to quenching system, Surface of profile black and white spot obtains effective control substantially, black and white spot also can obviously alleviate, namely Quenching Soaking Time is shortened when quenching, its Quenching Soaking Time is 20 minutes to 50 minutes, can effectively reduce black and white spot.
In order to optimize such scheme further, Quenching Soaking Time is according to section bar wall thickness and the corresponding minimizing 10 ~ 30min of batch, the timing node of Quenching Soaking Time can be 20 minutes or 30 minutes, generally, adopt when the thickness of Al-Li alloy section bar is 1.5mm-6mm Quenching Soaking Time be 20 minutes best to 50 minutes.Wherein, Al-Li alloy section bar can be 1420CZ Al-Li alloy.
Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (5)
1. a melanoleukoderma point control method in surface when Al-Li alloy section bar is produced, it is characterized in that, shorten Quenching Soaking Time when quenching, its Quenching Soaking Time is 20 minutes to 50 minutes.
2. melanoleukoderma point control method in surface when Al-Li alloy section bar according to claim 1 is produced, it is characterized in that, described Quenching Soaking Time is 30 minutes.
3. melanoleukoderma point control method in surface when Al-Li alloy section bar according to claim 1 is produced, it is characterized in that, described Quenching Soaking Time is 20 minutes.
4. melanoleukoderma point control method in surface when Al-Li alloy section bar according to claim 1 is produced, it is characterized in that, the thickness of Al-Li alloy section bar is 1.5mm-6mm.
5. melanoleukoderma point control method in surface when Al-Li alloy section bar according to claim 1 is produced, it is characterized in that, Al-Li alloy section bar is 1420CZ Al-Li alloy.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510957743.2A CN105483576A (en) | 2015-12-18 | 2015-12-18 | Surface black and white spot control method in production of aluminum lithium alloy profile |
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| CN201510957743.2A CN105483576A (en) | 2015-12-18 | 2015-12-18 | Surface black and white spot control method in production of aluminum lithium alloy profile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108165904A (en) * | 2017-12-28 | 2018-06-15 | 西南铝业（集团）有限责任公司 | A kind of process for quenching of 1420CZ aluminium lithium alloys type |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2612201A1 (en) * | 1987-03-09 | 1988-09-16 | Cegedur | METHOD FOR THERMALLY TREATING ALLOYS OF LI CONTAINERS TO PRESERVE THEIR SURFACE HEALTH |
| US4786337A (en) * | 1988-03-25 | 1988-11-22 | Rockwell International Corporation | Method of treating aluminum-lithium alloys |
| CN1150179A (en) * | 1995-11-14 | 1997-05-21 | 东北大学 | Al-Li alloy low-temp superplasticity pretreating method |
| EP1017867A1 (en) * | 1997-09-22 | 2000-07-12 | DaimlerChrysler AG | Aluminium based alloy and method for subjecting it to heat treatment |
| CN1482267A (en) * | 2003-08-18 | 2004-03-17 | 北京工业大学 | Al-Mg-Li-Zr-Er alloy |
| CN1540299A (en) * | 2003-04-22 | 2004-10-27 | ������������ʽ���� | Measurig method and measuring device |
| US20120291925A1 (en) * | 2011-05-20 | 2012-11-22 | Constellium France | Aluminum magnesium lithium alloy with improved fracture toughness |
| CN104451479A (en) * | 2014-12-15 | 2015-03-25 | 西南铝业（集团）有限责任公司 | Preparation method of 5A90 aluminum lithium alloy thin plate |
-
2015
- 2015-12-18 CN CN201510957743.2A patent/CN105483576A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2612201A1 (en) * | 1987-03-09 | 1988-09-16 | Cegedur | METHOD FOR THERMALLY TREATING ALLOYS OF LI CONTAINERS TO PRESERVE THEIR SURFACE HEALTH |
| US4786337A (en) * | 1988-03-25 | 1988-11-22 | Rockwell International Corporation | Method of treating aluminum-lithium alloys |
| CN1150179A (en) * | 1995-11-14 | 1997-05-21 | 东北大学 | Al-Li alloy low-temp superplasticity pretreating method |
| EP1017867A1 (en) * | 1997-09-22 | 2000-07-12 | DaimlerChrysler AG | Aluminium based alloy and method for subjecting it to heat treatment |
| CN1540299A (en) * | 2003-04-22 | 2004-10-27 | ������������ʽ���� | Measurig method and measuring device |
| CN1482267A (en) * | 2003-08-18 | 2004-03-17 | 北京工业大学 | Al-Mg-Li-Zr-Er alloy |
| US20120291925A1 (en) * | 2011-05-20 | 2012-11-22 | Constellium France | Aluminum magnesium lithium alloy with improved fracture toughness |
| CN104451479A (en) * | 2014-12-15 | 2015-03-25 | 西南铝业（集团）有限责任公司 | Preparation method of 5A90 aluminum lithium alloy thin plate |
Non-Patent Citations (1)
| Title |
|---|
| 刘北兴等: "固溶处理冷却速度对比1420合金性能的影响", 《材料科学与工艺》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108165904A (en) * | 2017-12-28 | 2018-06-15 | 西南铝业（集团）有限责任公司 | A kind of process for quenching of 1420CZ aluminium lithium alloys type |
| CN108165904B (en) * | 2017-12-28 | 2020-09-01 | 西南铝业（集团）有限责任公司 | Quenching method of 1420CZ aluminum lithium alloy section |
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